mm/hugetlb: convert dissolve_free_huge_pages() to folios

Allows us to rename dissolve_free_huge_pages() to
dissolve_free_hugetlb_folio(). Convert one caller to pass in a folio
directly and use page_folio() to convert the caller in mm/memory-failure.

[[email protected]: remove unneeded `extern']
  Link: https://lkml.kernel.org/r/[email protected]
[[email protected]: v2]
  Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Sidhartha Kumar <[email protected]>
Reviewed-by: Oscar Salvador <[email protected]>
Reviewed-by: Vishal Moola (Oracle) <[email protected]>
Reviewed-by: Miaohe Lin <[email protected]>
Cc: Jane Chu <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Muchun Song <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 3f3e62880279..8968e8a3a205 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -861,7 +861,7 @@ static inline int hstate_index(struct hstate *h)
 	return h - hstates;
 }
 
-extern int dissolve_free_huge_page(struct page *page);
+int dissolve_free_hugetlb_folio(struct folio *folio);
 extern int dissolve_free_huge_pages(unsigned long start_pfn,
 				    unsigned long end_pfn);
 
@@ -1148,7 +1148,7 @@ static inline int hstate_index(struct hstate *h)
 	return 0;
 }
 
-static inline int dissolve_free_huge_page(struct page *page)
+static inline int dissolve_free_hugetlb_folio(struct folio *folio)
 {
 	return 0;
 }